| Computer Code: |
FDN |
Preferred Map Code: |
FDN |
| Status Code: |
Full |
| Age range: |
Ashgill Series (OA)
— Ashgill Series (OA) |
| Lithological Description: |
Greyish-green well-bedded silty mudstones with thinly bedded greenish-black fine- to medium-grained sandstones in the upper part. Includes the 3 very fossiliferous Lady Burn Starfish beds (STFB) (A_C) near the top of the member. |
| Definition of Lower Boundary: |
Succeeds the largely unbedded siltstones and mudstones of the Lady Burn Formation. |
| Definition of Upper Boundary: |
Succeeded by bluish grey soft nodular mudstones of the Cliff Member of the South Threave Formation. |
| Thickness: |
c.40m. |
| Geographical Limits: |
Girvan area, southwest Scotland. |
| Parent Unit: |
South Threave Formation (STHV)
|
| Previous Name(s): |
none recorded or not applicable
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Lady Burn, east of South Threave Farm. Harper, 1982. |
| Reference(s): |
| Harper, D A T, 1982. The stratigraphy of the Drummock Group (Ashgill), Girvan. Geological Journal, Vol.17, p.251-277.l. 17 251-277 |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
| none recorded or not applicable |
